From ceae9600e3ce7003907c08af82142242ca3e294c Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Wed, 7 Jan 2026 14:25:29 -0800
Subject: [PATCH] std.posix: remove setuid, seteuid, setgid, setegid, getuid,
 etc

applications and libraries should reach for the lower level APIs instead
---
 lib/std/posix.zig      | 75 ------------------------------------------
 lib/std/posix/test.zig |  8 ++---
 2 files changed, 4 insertions(+), 79 deletions(-)

diff --git a/lib/std/posix.zig b/lib/std/posix.zig
index 84619317aa..532711f1b4 100644
--- a/lib/std/posix.zig
+++ b/lib/std/posix.zig
@@ -551,67 +551,6 @@ pub fn getcwd(out_buffer: []u8) GetCwdError![]u8 {
     }
 }
 
-pub const SetEidError = error{
-    InvalidUserId,
-    PermissionDenied,
-} || UnexpectedError;
-
-pub const SetIdError = error{ResourceLimitReached} || SetEidError;
-
-pub fn setuid(uid: uid_t) SetIdError!void {
-    switch (errno(system.setuid(uid))) {
-        .SUCCESS => return,
-        .AGAIN => return error.ResourceLimitReached,
-        .INVAL => return error.InvalidUserId,
-        .PERM => return error.PermissionDenied,
-        else => |err| return unexpectedErrno(err),
-    }
-}
-
-pub fn seteuid(uid: uid_t) SetEidError!void {
-    switch (errno(system.seteuid(uid))) {
-        .SUCCESS => return,
-        .INVAL => return error.InvalidUserId,
-        .PERM => return error.PermissionDenied,
-        else => |err| return unexpectedErrno(err),
-    }
-}
-
-pub fn setgid(gid: gid_t) SetIdError!void {
-    switch (errno(system.setgid(gid))) {
-        .SUCCESS => return,
-        .AGAIN => return error.ResourceLimitReached,
-        .INVAL => return error.InvalidUserId,
-        .PERM => return error.PermissionDenied,
-        else => |err| return unexpectedErrno(err),
-    }
-}
-
-pub fn setegid(uid: uid_t) SetEidError!void {
-    switch (errno(system.setegid(uid))) {
-        .SUCCESS => return,
-        .INVAL => return error.InvalidUserId,
-        .PERM => return error.PermissionDenied,
-        else => |err| return unexpectedErrno(err),
-    }
-}
-
-pub fn getuid() uid_t {
-    return system.getuid();
-}
-
-pub fn geteuid() uid_t {
-    return system.geteuid();
-}
-
-pub fn getgid() gid_t {
-    return system.getgid();
-}
-
-pub fn getegid() gid_t {
-    return system.getegid();
-}
-
 pub const SocketError = error{
     /// Permission to create a socket of the specified type and/or
     /// pro‐tocol is denied.
@@ -2800,20 +2739,6 @@ pub fn tcsetpgrp(handle: fd_t, pgrp: pid_t) TermioSetPgrpError!void {
     }
 }
 
-pub const SetSidError = error{
-    /// The calling process is already a process group leader, or the process group ID of a process other than the calling process matches the process ID of the calling process.
-    PermissionDenied,
-} || UnexpectedError;
-
-pub fn setsid() SetSidError!pid_t {
-    const rc = system.setsid();
-    switch (errno(rc)) {
-        .SUCCESS => return @intCast(rc),
-        .PERM => return error.PermissionDenied,
-        else => |err| return unexpectedErrno(err),
-    }
-}
-
 pub fn signalfd(fd: fd_t, mask: *const sigset_t, flags: u32) !fd_t {
     const rc = system.signalfd(fd, mask, flags);
     switch (errno(rc)) {
diff --git a/lib/std/posix/test.zig b/lib/std/posix/test.zig
index 31ed23211e..d2e34c0556 100644
--- a/lib/std/posix/test.zig
+++ b/lib/std/posix/test.zig
@@ -35,14 +35,14 @@ test "check WASI CWD" {
 
 test "getuid" {
     if (native_os == .windows or native_os == .wasi) return error.SkipZigTest;
-    _ = posix.getuid();
-    _ = posix.geteuid();
+    _ = posix.system.getuid();
+    _ = posix.system.geteuid();
 }
 
 test "getgid" {
     if (native_os == .windows or native_os == .wasi) return error.SkipZigTest;
-    _ = posix.getgid();
-    _ = posix.getegid();
+    _ = posix.system.getgid();
+    _ = posix.system.getegid();
 }
 
 test "sigaltstack" {